Telescopes Canada will be closed for shipping and pick-up orders from Friday June 24th to Monday June 27th inclusive. Online orders will still be accepted as per normal and will be shipped Tuesday June 28th. Technical support will continue to be available.
NOTE: Some manufacturer back order lead times are longer than usual. Please ask us regarding specific products.
A Tri-Bahtinov mask operates under the same principle as the Bahtinov mask for focusing and adds the ability to collimate scopes with collimatable optics. The design is based on Cytan's idea, documented on his Github site here, and the sketch was made using Satoru Takagi's Mask Generator. The mask has a raised center for an easy grip and comes in three sections that snap fit together and can be taken apart for easier storage (C5 is one piece, 14" and larger are 6 sections).
If you don't see your scope listed below Buckeye will be happy to design a mask to meet your needs.
**For Hyperstar versions, the center hole accommodates the Hyperstar, and will not go around cameras that are wider than the Hyperstar body. In such cases the camera must be removed for installation and removal of the mask.
Printed in durable, temperature tolerant PETG filament.